Turbine-driven blower.



F. H. C. COPPUS.- TURBINEA DRfVEN BLOWER. APPLlcArmN FILED APR. 19. ma.

' Patented 0` 15.23,1917.4

.u m u im@ m vw UNITED sTATEs PATENT oEEToE.

FRANS H. C. COPP'US, v0F WORCESTER. MASSACHSETTS, ASSIGNOR TO COPPUSENGI- NEERING AND EQUIPMENT COMPANY, OF WORCESTER, MASSACHUSETTS, A COR-PORATION 0F MASSACHUSETTS.

TURBINE-DRIVEN BLOWER.

Specification of Letters Patent.

To all lwhom t may concern Beit known that I, FRANS H. C. Corvus, acitizen of the United States, residing at Worcester, in the county ofWorcester and Commonwealth of Massachusetts, have invented a new anduseful Improvement in Turbine-Driven Blowers, of which the following,together with the accompanying drawings, 1s a specification.

The present invention relates to a turbinedriven blower; and the samecontemplates an improved arrangement of the turbine and the blowerconstituting such a set, whereby the disposal of the exhaust steam fromthe turbine lis facilitated, the back pressure within the casing of theturbine is reduced, and the action of the blowerkis improved..`

This application is a division of my copending application Serial No.730,561, filed ovember 11, 1912, -for a steam turbine.

The features of the present invention are fully set forth in thefollowimr description I. and pointed out in the annexe claims, referencebeing had to the accompanying drawing, in which the single figure is asectional view of the apparatus embodying my invention.

In said figure, the numeral 1 denotes a lturbine wheel, having the usualbuckets or blades 2. Rotary motion is imparted to said wheel by means ofste-am under pressure, admitted by a supply pipe 3 to the steam chamber4, formed in the casing 5 which incloses said wheel. The shaft 6 of saidturbine wheel, which is suitably journaled in the casing 5, carries onits outer end. a fan 7, disposed within the mouth of a casing or conduit8, through which said fan serves to force a current of air, used forAVentilating purposes, orf to produce an artificial draft, 1n the ashvpit of a boiler, or for any other purpose.

The exhaust opening 9 of the casing 5 opens laterally therefrom in the`direction of the conduit 8; a pipe 10 isthreaded therein, and the otherend of said pipe has aI snu sliding fit within a tubular passage 11ormed in the wall of the blower conduit Divided and this, applicationled April 8, to permit of expanison and contractioriof thc connectedparts. The passage 11 communicates through a discharge passage'12 withthe interior of the conduit 8,' contiguous to the fan 7. Said dischargepassage 12 is directed into the interior of said conduit 8 atl anoblique angle to the axis of Patented oet. 23, 1917'.

the fang?, so that the movement of air through the conduit 8, by saidfan, in the direction of the arrow a, induces a current through thepassage 11 1n the direction of the arrow b thereby reducing the backpres-f sure of the steam in the steam chamber 4, ,Y and causing thevexhaust steam from the turbine to become thoroughly inter-mingled withthe air set in motionv by the blower. l I claim- 1. In a device of theclass described, the

combination with a turbine, of a blower driven thereby, and having aninclosing casing, and means for delivering the exhaust steam from saidturbine into the casing of said blower in a direction corresponding tothe movement of air through said casing.

2. In a device of the class described, a shaft, a turbine wheel carriedby one end of said shaft, a fan blower carried by the other end of saidshaft, a casing inclosing said turbine wheel having an exhaust opening,a

second casing inclosing said fan blower having an exhaust passage, meansfor connecting said first and second casings with a space between them,and a pipe. connecting said exhaust opening of the iirst casing withsaid exhaust passage of the second casing.

3. In a device of 1e class described, a casing, a steam turbine'inclosedtherein, a second casing spaced from said first casing and having openlends, a fan blower inclosed therein, and a steam exhaust passage leadingfrom saidfirst casing and openin into sald second casing in front of saifan blower.

4. In a device of the class described, a casing, a turbine wheelinclosed therein, a second casing spaced from said first casing andhaving open ends, a `fan blower inclosed therein, a steam exhaustpassage leading from said first casing and opening into sai secondcasing in front of s aid fan blower, exhaust steam from said turbineinto said with the delivery end of Said exhaust pascasing.

10 sage at an oblique angle to the axis of said Dated this thirteenthday of April 1915.

fan blower.

5. In a device of the class described, the combination with u steamturbine, of n Witnesses: blower driven thereby, :L casing iuclosingPi-:NIiLorn COMBERBACH, said blower, und means for delivering the(jrEn'rnUDe MCGRATH.

FRANS H. C. COllU.

